Optically induced changes in the band structure of the Weyl charge-density-wave compound (TaSe4)(2)I

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Novel metallic wires and their mechanical, vibrational, and thermodynamic properties from first-principles

Chiara Cignarella

One-dimensional materials have gained increasing attention in the last decades: from carbon nanotubes to ultrathin nanowires, to few-atom atomic chains, these can all display unique electronic properties and great potential for next-generation applications ...

EPFL2024

Efficient and Stable Perovskite Solar Cells with a Multifunctional Spiro-Based Hole Transport Material

Mohammad Khaja Nazeeruddin

The widely used spiro-OMeTAD exhibits moderate interaction with the perovskite layer, which does not decrease the defect on the perovskite surface, thus limiting the photoelectric performance of perovskite solar cells. In this work, the spiro-OMeTAD struct ...

2024

Orbital-selective metal skin induced by alkali-metal-dosing Mott-insulating Ca2RuO4

Henrik Moodysson Rønnow, Gianmarco Gatti

Doped Mott insulators are the starting point for interesting physics such as high temperature superconductivity and quantum spin liquids. For multi-band Mott insulators, orbital selective ground states have been envisioned. However, orbital selective metal ...

Nature Portfolio2023

Even-odd effects in the J1-J2 SU(N) Heisenberg spin chain

Loïc Jean Pierre Herviou

The zero-temperature phase diagram of the J1-J2 SU(N) antiferromagnetic Heisenberg spin chain is investigated by means of complementary field theory and numerical approaches for general N. A fully gapped SU(N) valence bond solid made of N sites is formed a ...

2023